Question

Which is the equation of a circle with the center at (4, 7) and the radius 4 units long?

(x + 4)2 + (y + 7)2 = 16 (x − 4)2 + (y − 7)2 = 16 (x + 4)2 + (y + 7)2 = 4

(x − 4)2 + (y − 7)2 = 4
HELP PLEAS!!!

Answer 1

I believe it is the second one: (x − 4)2 + (y − 7)2 = 16
We know that the center is 4,7, so it will be x-4 and y-7
C=4, so C^2=16

Answer 2

Thanks I actually had that answer but I wanted to check with others.